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Diffstat (limited to 'fs/gfs2/recovery.c')
-rw-r--r--fs/gfs2/recovery.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 62cd223819b7..d0c806b85c86 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -132,10 +132,11 @@ void gfs2_revoke_clean(struct gfs2_sbd *sdp)
132 */ 132 */
133 133
134static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk, 134static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk,
135 struct gfs2_log_header *head) 135 struct gfs2_log_header_host *head)
136{ 136{
137 struct buffer_head *bh; 137 struct buffer_head *bh;
138 struct gfs2_log_header lh; 138 struct gfs2_log_header_host lh;
139 const u32 nothing = 0;
139 u32 hash; 140 u32 hash;
140 int error; 141 int error;
141 142
@@ -143,11 +144,11 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk,
143 if (error) 144 if (error)
144 return error; 145 return error;
145 146
146 memcpy(&lh, bh->b_data, sizeof(struct gfs2_log_header)); 147 hash = crc32_le((u32)~0, bh->b_data, sizeof(struct gfs2_log_header) -
147 lh.lh_hash = 0; 148 sizeof(u32));
148 hash = gfs2_disk_hash((char *)&lh, sizeof(struct gfs2_log_header)); 149 hash = crc32_le(hash, (unsigned char const *)&nothing, sizeof(nothing));
150 hash ^= (u32)~0;
149 gfs2_log_header_in(&lh, bh->b_data); 151 gfs2_log_header_in(&lh, bh->b_data);
150
151 brelse(bh); 152 brelse(bh);
152 153
153 if (lh.lh_header.mh_magic != GFS2_MAGIC || 154 if (lh.lh_header.mh_magic != GFS2_MAGIC ||
@@ -174,7 +175,7 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk,
174 */ 175 */
175 176
176static int find_good_lh(struct gfs2_jdesc *jd, unsigned int *blk, 177static int find_good_lh(struct gfs2_jdesc *jd, unsigned int *blk,
177 struct gfs2_log_header *head) 178 struct gfs2_log_header_host *head)
178{ 179{
179 unsigned int orig_blk = *blk; 180 unsigned int orig_blk = *blk;
180 int error; 181 int error;
@@ -205,10 +206,10 @@ static int find_good_lh(struct gfs2_jdesc *jd, unsigned int *blk,
205 * Returns: errno 206 * Returns: errno
206 */ 207 */
207 208
208static int jhead_scan(struct gfs2_jdesc *jd, struct gfs2_log_header *head) 209static int jhead_scan(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head)
209{ 210{
210 unsigned int blk = head->lh_blkno; 211 unsigned int blk = head->lh_blkno;
211 struct gfs2_log_header lh; 212 struct gfs2_log_header_host lh;
212 int error; 213 int error;
213 214
214 for (;;) { 215 for (;;) {
@@ -245,9 +246,9 @@ static int jhead_scan(struct gfs2_jdesc *jd, struct gfs2_log_header *head)
245 * Returns: errno 246 * Returns: errno
246 */ 247 */
247 248
248int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header *head) 249int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head)
249{ 250{
250 struct gfs2_log_header lh_1, lh_m; 251 struct gfs2_log_header_host lh_1, lh_m;
251 u32 blk_1, blk_2, blk_m; 252 u32 blk_1, blk_2, blk_m;
252 int error; 253 int error;
253 254
@@ -320,7 +321,7 @@ static int foreach_descriptor(struct gfs2_jdesc *jd, unsigned int start,
320 length = be32_to_cpu(ld->ld_length); 321 length = be32_to_cpu(ld->ld_length);
321 322
322 if (be32_to_cpu(ld->ld_header.mh_type) == GFS2_METATYPE_LH) { 323 if (be32_to_cpu(ld->ld_header.mh_type) == GFS2_METATYPE_LH) {
323 struct gfs2_log_header lh; 324 struct gfs2_log_header_host lh;
324 error = get_log_header(jd, start, &lh); 325 error = get_log_header(jd, start, &lh);
325 if (!error) { 326 if (!error) {
326 gfs2_replay_incr_blk(sdp, &start); 327 gfs2_replay_incr_blk(sdp, &start);
@@ -363,7 +364,7 @@ static int foreach_descriptor(struct gfs2_jdesc *jd, unsigned int start,
363 * Returns: errno 364 * Returns: errno
364 */ 365 */
365 366
366static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header *head) 367static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head)
367{ 368{
368 struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 369 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
369 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 370 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
@@ -425,7 +426,7 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
425{ 426{
426 struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 427 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
427 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 428 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
428 struct gfs2_log_header head; 429 struct gfs2_log_header_host head;
429 struct gfs2_holder j_gh, ji_gh, t_gh; 430 struct gfs2_holder j_gh, ji_gh, t_gh;
430 unsigned long t; 431 unsigned long t;
431 int ro = 0; 432 int ro = 0;